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arxiv: cond-mat/9708115 · v1 · submitted 1997-08-15 · ❄️ cond-mat.supr-con

Muon spin rotation measurement of the fundamental length scales in the vortex state of YBa2Cu3O6.60

J.E. Sonier , J.H. Brewer , R.F. Kiefl , D.A. Bonn , S.R. Dunsiger , W.N. Hardy , Ruixing Liang , W.A. MacFarlane
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R.I. Miller T.M. Riseman (University of British Columbia) D.R. Noakes C.E. Stronach M.F. White Jr. (Virginia State University)
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keywords vortexradiusdepthfoundmuchnbse2penetrationstate
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The internal field distribution in the vortex state of YBa2Cu3O6.60 is shown to be a sensitive measure of both the magnetic penetration depth and the vortex-core radius. The temperature dependence of the vortex core radius is found to be weaker than in the conventional superconductor NbSe2 and much weaker than theoretical predictions for an isolated vortex. The effective vortex-core radius decreases sharply with increasing H, whereas the penetration depth is found to be much stronger than in NbSe2.

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